A portable expandable device with a contracting mechanism which allows for many forms of recreational products and structures to be expanded, reinforced in the expanded shape, and then contracted easily to regain its portable form. The expansion means is exercised by the use of at least one of the following, resiliently extending, unfolding, inflating, as to become an expanding form which can then be easily retracted to the redeployed form. The retraction mechanism reverses the expansion process utilizing a mechanism which sequentially exerts the forces needed in the proper locations in order to ensure proper contraction. Disclosed embodiments utilized supplemental structural reinforcement of the expanded form through the use of joints, releasable interlocks, latching mechanisms, air bladders, to ensure the form is stable and usable. The objective being a stable structure with a rapid and easy deployment and a supplemental retraction means as to be easily transportable.
Foldable frame device with spool
2024-05-21
Patent
Electronic Resource
English
IPC: | E04H Gebäude oder ähnliche Bauwerke für besondere Zwecke , BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES / A45C Geldbehälter , PURSES / A47C Stühle , CHAIRS / A47G Haushalt- oder Tafelausstattung , HOUSEHOLD OR TABLE EQUIPMENT / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B66D Haspeln , CAPSTANS / E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS |